PubMed Health⌕ Search

Biomedical subjects

J Freitag

Publications and source records attributed to J Freitag.

At least 91 records · Page 5Linked to original sources
PubMed1978

[Angiographic features of trophoblastic tumors (author's transl)].

Trophoblastic tumors are characterized by typical angiographic features with marked pathological vascularization, arteriovenous shunts and early filling of veines. If the HCG-titer increases after removing of a hydatidiform mole pelvic angiography is indicated in cases of negative histological finding also. In 3 cases the typical angiographic feature was found. Two times remaining changes of gravidity are histologicaly found on an abrasio. In 1 case with increased HCG-titer and negative histological finding a trophoblastic tumor was ascertained angiographicaly. Diagnostic value of pelvic angiography is demonstrated by above mentioned cases.

Abortion, Therapeutic↗
PubMed1978

[Clinical-experimental studies on the behavior of the normal bladder blood vessels and of tumor vessels towards elevated intravesical pressure].

In 17 patients with tumours of the urinary bladder angiographies of the pelvis were carried out and then the angiography was repeated during an increase of the intravesical pressure to 60--120 mm Hg. In the normal, angiographically depictable vessels of the urinary bladder the blood circulation could not be interrupted by increased intravesical pressure. On the other hand, the pathological vessels of the tumours clearly reacted to an increase of the intravesical pressure. In 9 cases the circulation was completely interrupted, in 6 patients nearly all pathological vessels were compressed, and in 2 patients a clear reduction of the vessels visible before was reached. The different behaviour of normal and pathological vessels in our opinion is based on the inferior construction of the walls of the pathological vessels as well as on the lower blood pressure in the vessels of the tumour.

Aged↗
PubMed1978

[Parapyelitic cysts--case contribution].

It is reported on 4 patients with intrahilary renal cysts. After references to etiology and difficulties in the diagnosis the case reports are given. In 3 out of 4 observations the cases in question were histologically dilations of the lymphatic vessels.

Aged↗
PubMed1977

[Significance of renovasography in the elucidation of hypertension].

About 10% of all cases of hypertension are nephrogeneously conditioned. The renovasography gives the clearest evidence for the morphological diagnostics of changes of the renal arteries and the parenchyma. In 180 hypertensive patients with pathological findings of the renal angiography most frequently pyelonephritic changes were proved. Then follow changes of the arteries, kidneys with urinary stasis, polycystic degenerations and hypoplasias. These diseases were, however, also found in 108 patients with normal values of blood pressure. Possibly cases are concerned in which no haemodynamic effect of the disease is present. In advanced findings reductions of organs were registered. In a part of the cases the sizes of the kidneys were found within the normal values. Only some patients with hypertension had enlargements of the organs. When multiple renal arteries were present a hypertension was significantly more frequent than in a supply of the kidneys by means of one artery each.

Adult↗
PubMed1975

[Results of nuclear medical, electroencephalographic, and angiographic examinations after brain tumor operations].

The methods of nuclear medicine and electro-encephalography allow, in combination, in almost every case the answer to the question of the cerebral tumour relapse. Our evaluation confirms the discovery of the greater sensitivity of the isotopic methods with relapses of glioblastomas, while relapses of meningiomas, astrocytomas, oligodendrogliomas and spongioblastomas can be recognized more frequently only by electro-encephalographic methods. The value of angiography is limited in cases of cerebral tumour relapses without pathological vascularisation, since the swelling can spread in the resection cavity without retroaction on the surrounding areas. For this reason vascular displacement (an only be observed very late on. Clinical judgement is furthermore complicated by the fact that after the removal of the primary tumour, often no reposition of the arteries ensues. After our exainations, a negative angiographic condition can be rule out a diagnosis of a relapse which has been established by electro-encephaolographic and isotopic methods.

Astrocytoma↗